Are these reef safe?

[Fishingandreefing]

So I see a bunch of these just curious what they’re and if they’re reef safe (saltwater or at least brackish)

 

[blaxsun]

Thinking they probably won't be happy underwater...

 

[Fishingandreefing]

I was thinking the same.

 

[Reefer Reboot]

Common Periwinkle snail, watch this for a quick overview.

 

[Fishingandreefing]

Common Periwinkle snail, watch this for a quick overview.

Nice find!

 

[WheatToast]

I have some Hawaiian periwinkles from Indo-Pacific Sea Farms and while I have no experience keeping them with coral, judging by their natural diet, I would assume they are reef safe. They are currently keeping my refugium clean, slowly rasping away at diatoms and Sea lettuce (Ulva), though both grow fast enough not to get totally consumed. Unfortunately, they have a habit of moving above the water line, so while they have not crawled above my sump's rim (about 4 inches of space between water line and rim, the rim also curves inward), they occasionally make their way outside of the refugium, into other chambers.

 

[Fishingandreefing]

I have some Hawaiian periwinkles from Indo-Pacific Sea Farms and while I have no experience keeping them with coral, judging by their natural diet, I would assume they are reef safe. They are currently keeping my refugium clean, slowly rasping away at diatoms and Sea lettuce (Ulva), though both grow fast enough not to get totally consumed. Unfortunately, they have a habit of moving above the water line, so while they have not crawled above my sump's rim (about 4 inches of space between water line and rim, the rim also curves inward), they occasionally make their way outside of the refugium, into other chambers.

Nice to know!